Printer&#39;s hook



Sept. 21 9 19260 MERRiLL.

PRINTER-S 8003 Film; Sac. 7 192% V sion block units or furniture, suchas are Patented Sept. 21, 1926.

UNITED STATES- ELMER Q'MEnR LL, or rivunaroms, MINNESOTA.

PRINTER/S HOOK.

Application filed December This invention relates to improvements in theart of printi'ng,and the primary object is to provide a simple,-practical and highly efiicient construction of so-called hook, or look, the samehaving'for its'object to engage and lock printing plates uponexpancommonly employedin filling in the spaces in a printing chase.Further and 'more specific objects will be disclosed in the course ofthe following specification, reference 'being had to the accompanyingdrawing,

wherein:

Fig. 1 is a perspective'view of my improved locking hook.

Fig. 2 is an enlarged top or plan view of the hook shown in Fig. 1.

Fig. 3 is a sectional view as on the line 3-3 in Fig. 2.

Fig. 4 is a sectional elevation as seen substantially on the line 4 etin Fig. 3.

Fig. 5 is a perspective view of the guide or follower employed.

Fig. 6 is a perspective view of one of the side sections. 7 v

Fig. 7 is a planview of a portion of a printers chase or frame in whichare ar ranged and secured a number of my 1mproved plate hooks.

Referring to the drawing more particularly and by reference charactersAdesignates a frame or chase in which is arranged and locked the usualfiller blocks B which are customarily employed to fill in thenonprinting or blank spaces between the type. It is often necessary, insetting up a page or printing unit, to use as a part or parts thereofelectro and other process plates C and D, which are frequently employedfor color work, such as job and book work, publications, catalogs, etc.,and, as the printing surfaces of these plates must be flush or even withthe printing surface of the type they are necessarily very thin,'as thetop surfaces of the blocks B are flush with the top edges of the typeblocks.

My object, therefore, is to provide a practical method for securing theplates on the blocks B, and this I accomplish by substituting forcertain of said blocks, depending u on the size, location and positionthe plate is to assume, a series of hooks or looking blocks E, theconstruction of which may be described as follows:

Each block E comprises a substantially U-shaped end and bottom member 8,to and 7; 1925. Serial No. 73,677.

in which is rigidly and securely fastened, as

by rivets 9, a pair of side sections or members IQ and 11, so that themembers 8, 10 and 11 forma substantially solid'block having a centralslot oraperture 12. v The sided members 10 and 11 are providedin theirinner surfaces with directly opposed horizontal grooves 13 and 14-, anddiagonal slots 15, A follower member 16, consisting'of a rectangularblock, is slidably arranged in the slot 12 'and'is provided withopposite diagonal flanges 17 adapted to move or slide in theinclinedgrooves 15. The follower is provided with central threaded hole 18, inwhich screws a bolt 19 having a key-hole 20 in which a key may beinserted to turn the bolt. The bolt 19 is further provided at its lowerend and near its upper end with a pair of rigid circular flanges 21and'22, which respectively engage and rotate in the grooves 14 and 13,and thus prevent any play or tilting or tipping action of the boltin'the slot 12, allowing it to move only longitudinally of and in theslot.

Rotatably secured upon the upper end'of the bolt 19 is a gripping memberor jaw 23, the same being provided with an undercut or bevelled edge 24for gripping engage ment with the edge of the plate G or D. The objectof rotatably mounting the jaw on the bolt is, first, to allow the boltto rotate, and second, to permit the edge of the jaw to engage the plateevenly even when the plate edge is at a considerable angle from thehorizontal or vertical. As shown in Fig. 7 the plate edges are parallelwith the sides of the chase, but it is frequently desired that a platebe secured in an angular position, with its edges running obliquely tothe sides of the chase, and in such instances it is obvious that themembers 23 will squarely engage such edges even though the blocks E aresquare with the chase.

It is understood that various modifications may be made in the generaldesign and structural details of my invention, as herein disclosed,provided, however, that such modifications come within the spirit andscope of the appended claims.

Having now therefore fully shown and described my invention what I claimto be new and desire to protect by Letters Patent is: Y

1. In a device of the character described,

a block having a rectangular recess provided ways and horizontalguideways, a follower adapted to be guided by said inclined guideways, abolt threaded in said follower, and having flanges for engagement insaid horizontal guideways, and a jaw member adapted to be moved over theface of the block by Said bolt. 7

2. In a device of the character described, a block having a rectangularrecess provided in its walls with horizontal grooves, a vertical bolthaving circular end flanges arranged to rotate and move horizontally inthe grooves, a jaw carried by said bolt, and means for moving the bolthorizontally by rotating the same. p

8.111 a device of the character described,

ablock having a rectangular recess provided in its walls with opposedinclined and horizontal guideways, a vertical bolt in-said recessadapted to be held against vertical movement by circular flangesoperating in;

said horizontal guideways, a follower, en-

gageable with the inclined guideways tox "in its walls with opposedinclined and horizontal guideways, a vertical bolt in said recessadapted to be held against vertical movement by flanges operating insaid h'orizontal guideways to move the bolt in a hori-; zontal path whenthe same is rotated, and a plate engaging jaw rotatably carried by theupper end of said bolt I V In testimony whereof I affix my signature.

ELMER G. MERRILL.

